基本解釋[數(shù)學(xué)]周期三角函數(shù)詞組短語(yǔ)短語(yǔ)periodic of trigonometric function 三角函數(shù)的周期periodic transformation of trigonometric function 三角函數(shù)的周期變換trigonometric function periodic wave solution 三角函數(shù)型周期波解periodic trigonometric function更多詞組專業(yè)釋義數(shù)學(xué)周期三角函數(shù)